मुफ्त ध्वनि तीव्रता स्तर कैलकुलेटर
ध्वनि तीव्रता स्तर डेसिबल में निकालें। ध्वनि तीव्रता से dB SIL की गणना करें।
Sound Intensity Level
90.00 dB
सूत्र
Sound Intensity Level
The decibel scale expresses sound intensity relative to the threshold of human hearing.
Formula
L = 10 log10(I / I0)
Every 10 dB increase corresponds to a tenfold increase in intensity. Normal conversation is about 60 dB; a rock concert about 110 dB.
हल किया गया उदाहरण
Sound intensity of 0.001 W/m2.
- 01L = 10 log10(I / I0)
- 02L = 10 log10(0.001 / 1e-12)
- 03L = 10 log10(1e9)
- 04L = 10 * 9 = 90 dB
अक्सर पूछे जाने वाले प्रश्न
Why use a logarithmic scale?
Human hearing spans an enormous range of intensities (a factor of about 10^12). The logarithmic decibel scale compresses this into a manageable range of about 0 to 120 dB.
What is the threshold of pain?
About 120 to 130 dB, corresponding to 1 to 10 W/m2. Prolonged exposure above 85 dB can cause hearing damage.
How does distance affect intensity level?
For a point source, intensity decreases as 1/r^2. Doubling the distance reduces the level by about 6 dB.
सीखें